:root {
  --bg: #0b0d10;
  --panel: #12161b;
  --text: #f5f7fa;
  --muted: #9aa4b2;
  --line: #242b33;
  --accent: #8ab4ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

.container {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  border-bottom: 1px solid var(--line);
  background: rgba(11, 13, 16, 0.96);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 72px;
  gap: 24px;
}

.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

nav a:hover {
  color: var(--text);
}

main {
  padding: 72px 0;
}

.hero {
  padding: 48px 0 36px;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2 {
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  margin: 12px 0 18px;
}

h2 {
  margin-top: 40px;
}

p,
li {
  color: var(--muted);
}

.lead {
  font-size: 1.15rem;
  max-width: 720px;
}

.card {
  margin-top: 32px;
  padding: 28px;
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 16px;
}

a {
  color: var(--accent);
}

footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 700px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

  main {
    padding-top: 36px;
  }
}